﻿using System;
using System.Collections.Generic;
using System.Data.Entity;
using System.Data.Entity.ModelConfiguration.Conventions;
using System.Linq;
using System.Web;
using contos.Models;

namespace contos.DAL
{
    public class SchoolContext:DbContext
    {
        public DbSet<Student> Students { get; set; }
        public DbSet<Course> Courses { get; set; }
        public DbSet<Enrollment> Enrollments { get; set; }
        public DbSet<Department> Departments { get; set; }

        public DbSet<Instructor> Instructors { get; set; }

        public DbSet<OfficeAssignment> OfficeAssignments { get; set; }
 
        protected override void OnModelCreating(DbModelBuilder modelBuilder)
        {
            base.OnModelCreating(modelBuilder);
            modelBuilder.Conventions.Remove<PluralizingTableNameConvention>();
            modelBuilder.Entity<Instructor>().HasOptional(p => p.OfficeAssignment).WithRequired(p => p.Instructor);
            modelBuilder.Entity<Course>().HasMany(c=>c.Instructors).WithMany(i=>i.Courses).Map(t=>t.MapLeftKey("CourseID").MapRightKey("InstructorID").ToTable("CourseInstructor"));
            modelBuilder.Entity<Department>()
                .HasOptional(x => x.Administrator);
        }
    }
}